Can companies that buy and sell patents with each other participate in the bidding at the same time?

Yes, both parties need to sign an agreement. Companies that buy and sell patents can participate in the bidding at the same time, and both parties need to sign an agreement. Bidding refers to the behavior of bidders to submit bidding documents to the tenderer within the specified time limit at the invitation of the tenderer in accordance with the conditions stipulated in the tender announcement or tender sheet. In most countries, government agencies and public utilities purchase equipment, materials and daily necessities through bidding, and often use bidding when exploring resources, developing mineral deposits or attracting investment to undertake construction projects.